From their site: Huge Seal is a Steam Discount Coupon giveaway where you get to choose 5 Steam Discount Coupons from a list of over 30 indie games by logging on to hugeseal.comwith your Steam account. And when you purchase 3 games with the coupons, you get one random Steam key for free!

The campaign ends on November 24th, so be sure to get going while the going is good!